UPDATE 1-High-yield, investment-grade funds post third week of outflows -Lipper

(Adds quotes from research analyst at Lipper, table) By Sam Forgione NEW YORK, Aug 13 (Reuters) - U.S-based high-yield bond funds reported $1.2 billion in outflows, while U.S.-based investment-grade corporate bond funds posted their biggest cash withdrawals since June 2013, at $1.8 billion, data from Thomson Reuters' Lipper service showed on Thursday. The latest figures, for the week ended Aug. 12, mark the third straight week of outflows for the two fund categories, Lipper said